反应详情

To a solution of approximately 3.0 g (0.016 mole) of 4-nitro-1,2-diethyl-pyrazolidine in 100 ml of toluene was added 60 ml of anhydrous ethanol and 2 g Raney nickel (washed three times with anhydrous ethanol). The mixture was added and hydrogenated for three hours at about 30 psi. The mixture was filtered to give a light yellow solution. The solvents were evaporated at reduced pressure giving the colorless liquid, 1.95 g of the title product, b.p. 113°-115° C./40 mm. The dimaleate salt melted at 119°-120° C.

1. additionThe mixture was added
2. filtrationThe mixture was filtered
3. customto give a light yellow solution
4. customThe solvents were evaporated at reduced pressure